Converting from SolidWorks save formats (3MF/STL) to OBJ, is it possible and how to include materials (MTL-file) in conversion?

We already tried to enable materials in ObjSaveOptions:

        ObjSaveOptions saveObjOpts = new ObjSaveOptions();
        // Import materials from external material library file
        saveObjOpts.EnableMaterials = true;

@JukkaJoensuuRoimaInt

Thank you for contacting support.

We would like to share with you that STL does not have material information, while 3MF in Aspose.3D has very limited support of material.